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Digital Pyroelectric Infrared Sensor: NS312

NS312 is a type of PIR sensor which integrates a digital control circuit and a human detection sensor. The human body detection sensor couples the sensed human movement signal to the digital intelligent integrated circuit chip through a very high impedance differential input circuit, and the digital intelligent integrated circuit converts the signal into an ADC digital signal, and all signal processing is done on the chip.

 

 

Product Features:

  • Digital signal output
  • Sensing Distance: 10M(lens SB-F-02)
  • Low power consumption、Low voltage ,Short warm-up time
  • High power supply rejection ratio, anti-RF interference
  • The second-order Butterworth bandpass filter with built-in infrared sensor shields input interference at other frequencies
  • Good stability, effective suppression of repetitive misoperations

Specifications (Operationg Conditon: T=25°C, Vdd=3V,unless stated otherwise):  

   Parameters Unit Min Typical Max
   Window Size mm^2 4*3
   Regular voltage (VDD) V 2.7 3 3.3
   Operation current (IDD) μA 9 12 15
   Sensitive threshold (VSENS) μV 100
   Detective wavelength (λ) μm 5 14
   Output current low (IOL, VOL<1V) mA 10
   Outout current high (IOH, VOH>(VDD-1V)) mA -10
   Low REL output locking time (TOL) s 2  
   High REL output locking time (TOH) s   2
   LPF cutoff frequency Hz 7
   HPF cutoff frequency Hz 0.44
   On the chip oscillator frequency (FCLK) FCLK 64
   Operating Temp. °C -30   70
   Current into any pin °mA -100   100
   Storage Temperature °C -40   80

 

Dimensions and PIN Definition:

 

 

 

 

Pyroelectric Infrared Sensor: NS312 ($1.8): 

 
 

 
Lead time is around 3 weeks, Contact us for quantity pricing.

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